burton



l 'the barrel.

I UNITED STATES PATENT OFFICE. i

BETHEL BURTON AND WINGFIELD G. B

sAID BETHEL BURTON AssreNoR To sAin wrNerretD e. BURTON.

lwwovEMEN-r 1N BREEcH-LoAoipe AND MAGAZINE-ienne.'

Specification formingpart of Letter-s Patent No. 143,614, dated October 14, 1873; 'application ld Apri111, 1873.

ATo all whom it may concern.'

Be it known thatwe, BETHEL BURTON and Wnverrn'rn G. BURTON, of the city of Brooklyn, `in the county of Kings and State of N ew York, have invented certain Improvements in Magazine Breech-Loading FireArn'is,

of which the following is a specification:

The first part of our invention' relates to the bolt and manner of constructing said bolt. The bolt, being, divided, is coupled together by a round tenen on the rear part fitting' in a corresponding hole in the forward part of the bolt. The forward part of the bolt extends over the rear part up to the lever, and holds both firmly together. The rear part of the bolt is provided with a 'stop-pin placed in the lever, and actuated by a spira-l spring, which serves to prevent the rear part of the bolt from turning until in -its 'proper place in the receiver. The leversextractor is pivoted in the forward part .of the bolt. The lever end is lifted by a lump or cani on the piston. When the rear part ofthe bolt is turned the other end of the lever-extractor is forced down on the cartridge. The forward part of the bolt has a groove cut in to allow the upper end of the arm of the bellcrank lever to work therein. The ends of this groove serve to nlove the arm of the bell-crank lever back and forth when opening or closing the breech, thus lifting and lowering the carrier.

The second part of 01u' invention relates to the bell-crank lever and carrier which serves vto convey the cartridge from lthe magazine to p The bell-crank lever is pivoted to the triggerguard. The upright arm is lowered or raised by means of an eccentric joint or inicroineterscrew. The other arm is pivoted to the carrier by means of a link. The carrier is provided with a gate, hinged to the lower side ther f. This gate is closed by a spring which yi is to pressure from without, afhnittiug the cartridges into the magazine, and prevents their retlun until the carrier is lowered, when the spiralspring in the magazine forces the cartridge onto the carrier, ready to be raised by the-upward motion. The object of this part of our invention is, to impart an easy motion to the carrier; to enable `the arm to be used as abreech-loader, reserving' the magazine until .the proportions given to upward motion of the carrier.

this the opening in the upper part of the receiver needed; to lessen the wear of the parts subject to motion by disconnecting when not required to be used, and to facilitate the charging of the 1r agazine without weakening the arm.

The third part of our invention relates to the opening in the upper part of the receiver, to prevent theloaded cartridge froln being thrown out in the rapid To accomplish is shorter than the opening in the carrier-box, which allows theeartridge 4to magazine. 'The opening in the top may be out farther back by leaving` l which is done by formingthe dovetail slide, upon which the sides of the cover move. The saine object may be attained by projecting pinsfrom the side of the receiver, which will prevent the loaded cartridge from being thrownY out. The object of this part of our invention is to avoid the necessity of .making the bolt s1nall. enough to pass Athrough the-carrier, which is generally done, suiiiciently strong to resist heavy charges and the bolt being leftJ prevent loaded cartridgesfroln being thrown out through the opening in the top of the receiver.

The fourth part of our invention relates to the piston or iiring-pin, which is ina-de with a rib, which works in a hole or groove in the rear bolt. The forward end of this rib passesinto an opening eut in the rear of the forward bolt. At

the joint an incline or cani is made on one side of this opening, against which theend of the rib on the piston slides when the rear of the bolt is rotated, which forces back the piston until` the point is within the forward part of the-bolt. Upon one `side of the piston a lump or cani is for-ined, which serves to lift up thelever end of the extractor. this part of our invention is to make use -of the rib on the piston for the double purpose of turning andA withdrawing the point of the piston Iwithin the surface of the bolt, to prevent contuct with the fulminate of the cap, and to lift up the arm of the extractor by means of the cam on the pistolrrod.

The fifth part of olu invention relates to the construction `Pt' the, `scar-bolt, trigger, and Benrwpring. A' vl'imp islfo11ne(l on the m1- UETON, or BROOKLYN, New vonk,

rise from the part of the circle,

The object of y der side of the receiver,

. The nose-cap is made to serve as a band, and

" is made with a flange.

screws into the guide-box or its equivalent;

the receiver C.

in which is placed a spiral spring. and nut and sear-lmlt. The spiral spring is placed between the 'flange on the scar-bolt and the nut, through which the scar-bolt passes. The spring serves to keep the sear-bolt lpressed up in place. A lyl-springniay be used, screwed to the trigger; guard under the arm of the trigger, 'which entends forward and supports the cranklever epd carrier, keeping the carrier from dropping domi when the arm used as a breechlcader. The object of this part of our invention is, to avoid cutting away the stock, and to a more pleasant feel to the pull of the trigger, and to prevent the carrier from falling down when in use as a breech-loader.

The sixth part of our invention relates to the combination ofthe nose-cap, band, and ralnrod.

impart to fasten the swivel and ramrod to. Therod' The point of the rod forces the flange on the rod against the noseeap, and thus retains the magazine-tube, spiral spring, and nose-cap in place. The objeetof this part of our invention is, to readily get 'at the magazine for cleaning or repairs, to lessen the number of parts, and diminish the cost.

Figure 1 is a longitudinal section of the gun at the breech. F10'. 2 is a view of the under side of receiver, crank-lever, carrier, and gate. Fig. 3 is a top view of receiver, showing the*l opening and stop to prevent 'the cartridge from being thrown out. Fig. 4 is a cross-section of receiver, showing the carrier guide-box, and dovetail on which the sides otz Fig. 5 is a side view of the bolt coupled together a dY detached from vthe receiver. Fig. 6 isla vieriT of the piston. Fig. 7 is a view of the leversextractor. Fig. 8 is a sectional view of the breech, showing the scar-bolt, spiral spring, crankfl'ever, and trigger. Vthe construction and manner of operating the eccentric pin. Figs. 12 to g1 are views of the A.bolt in different positions', Fig. 22 is a sect-ion of the crankfiever and carrier in one piece; and the mode of attaching a gate thereto, for the purpose of charging the magazine from the under side. Fig. 23 is a sectional view, showing the mode of closin g the magazine. i

A vis the stock, is the barrel, screwed 'to D is the rear part of the bolt, coupled tothe forward part of the bolt lVin the manner seen in Figs. 1, 5, 12, 13, 14, 15,16,

17, and 1S. The parts are coupled, and the lever D1 in' avertical position, with the point ot' the pin '1" in the groove 11, as seen in Figs. 1, 5,17, and 18. The rear part ofthe bolt ll) ean not turn, and is held iirnily in place by the pin T in the recess in the 'strap or cover t2 until the bolt is shoved home, when the end ot' the pin f1!! stigkes,. rgainst the rear ot' the receiver (j, which forces back the pin '1" and allows the bolt D to turn, when the sectional screws on the bolt D engage the corresponding screws in the rear ofthe receiver, which sustains the recoil. The spring 'l 4and l, Figs. 15,16, let into the the cover slide.

Figs. 9, 10, 11 show` l coupling-strap or cover E, Figs.. 13, 14, and

working in a groove, tl, cut in the face of the lever D1, Fin'. 12, secures in (v. A iiat spring let into the outside of the lever l)1 may also be used to press against the pin T', to couple the bolt together, if preferred. The piston l is made with a rib, b,which works in a groove or hole, 112, in the bolt D, and upon the incline or cam b1 in the joint of the bolt D2, which serves to draw the piston within the body' ot' the bolt, to prevent iteoi'ning in contact with the cap of the cartridge. Upon lthe piston a projection or cani, a, is made, which serves to lift rip the end ot the lever-extractor, F, vand prevents the hook of the extractor from disengaging from the cartridge when extracting. The extractor F is pivoted to the bolt D2 and 4let in from the inside. The cover E and the bolt l)2 arevformed in one piece, so as to resist heavy charges, and, by 'making the joint X ot' the bolts i) and D2 so that the bolt D may revolveilponthe boltD2 behind the scar-bolt, the use ot an L-shap'ed slot is avoided in the bolt l)2,and the greatest strength is preserved. 'In order to insure the certainty of extracting the cartridge the end of the bolt is deeply recessed to receive thebase of the cartridge.. By so doing the cutting away of the barrel for tractor-hook to enter is avoided. The cartridge is ejected by a pin, m, which strikes against throwing the cartridge-shell through the opening inthe receiver, or by the pressure of a spiral spring on the pin lm, Fig. 5. The Sear-bolt L is kept in place as seen. in Fig. 8, or by a V- spring, s, Fio. 1. The crank-lever Gr H is pivoted on an arm of the screw N, thehead oi' which is'iitted in a hole made in the lmnp .on the trigger-plate Z,and is -lowered or raised by a micrometer-screw, one turn of which is suiicient to put in motion or to stop the working parts of the magazine. The micrometer-screw is securedto the trigger-plate by a pin, n. A small pin, n', Fig. 2, passing through the-arm on which the crank-lever'works, and into a slot in t-l 1e lump Z' on the trigger-plate, prevents the levenarm G from .risin g or lowering toomuch. To raise or lowerthe arm G--the object sought to be obtainedan eccentric pilifJ J 2, Fifv. v10, operated bya handle, K, on the outside ot' the stock, and retained in place by the grooves in the plate K', may also be' used. In order to reduce the dimensions of the gun the carrier O is madeshallow; and to prevent the carrier from jamming or sticking in its motion up and down in the guide-box XV, and in order to give the applied force in a direct line with the motion ot the carrier, a link-connection, Q, is made b etween the lever-arm G and the carrier. O. 1n order to admit the cartridge readily into tln` magazine, a gate, 0', is provided. This gate is hinged to the carrier 0. -A spring, y, pressing against the gate 0 keeps it elt'ectually closed against the egress of the cartridges from the magazine, but admits ot' the ingress of cartridges from below to the magazine. In order to provide for cartridges the more readily enthe bolt D from turnthe exthe scar-bolt L when the bolt is withdrawn,

tering thcmagazine, an incline, y', is sometimes eut in the lower part of the box and into the.

magazinetubc. The gate O and spring y may be applied to a carrier and crank-lever made in one piece, as seen in Fig. 22, so as to enable the magazineto be loaded from the under side. rlhe gate maybe made to open'outward. The box NV is made with a larger opening in the front than is required for the carrier to work in, in order to make room for the thumb or finger in shoving the cartridge into the magazine.

To' enable the magazine to be got at readily for the purpose of cleaning, and to provide a suitable means of closing the end of the mag azine-tube, the nose-cap w and forward band are made in one piece, as seen in Fig. 23. The iiange w on the ramrod, when the rod is screwed up,'keeps the nose-cap from coming off, and keeps the ma gazine-tube and spiral spring in place in the stock. rlhe nose-cap extends below the stock, and serves for a fastening for the ramrod and swivel. The upper part of the receiver g, Fig. 4, is cut away to fit the dovetail edges y of the cover F, upon which the bolt hangs. By fluting the edges of the cover the x friction is -further diminished.

NVe make no claiinto the magazine itself, for we are aware that is not new, but

Te claim as our inventionl. The bolt-sections l) D2, when constructed substantially as described and adapted to be combined and locked together by a stop/For. T', to keepthcm from turning when open and unlocked, in the act of closing the breech, as and for the purpose hereinbefore set forth.

2.' The comliination of the crank-lever Gr H, link Q, and ,carrier 0 substantially as and for the purpose hereinbefore set forth.

3. The means, substantially as herein del scribed, for changing the pivot or fulcruin ot' the crank-lever Gr H, consisting of an eccentric y pin or screw, in combination with said lever, so that the arm H may be thrown into or out oi' gear with the breech-bolt, substantially as and forthe purpose hereinbefore set forth. I

4. A shifting fulcrumlever, in combination with a breech-block and cartridge-carrier, substanti-ally as and for the purpose hereinbefore set forth.v

5. rlhe spri11ggate0,pivoted or hung in such relation with the flange or lip on the carrier that its flan ge or lip, when pressed inward, will shut past the lip on the carrier, substantially as andfor the pln'pose hereinbefore set forth.

6. The receiver having an opening, substantia-ily as described, to prevent the cartridge from being thrown out in its passage from the maga-zure, substantially as and for the purpose hereinbefore set forth.

7. The piston l?, provided with the rib b and .lump a, in combination with the incline b1 and lever extractor, substantially as and for the 'purpose hereinbefore set forth. i

S. TheV-spring s, when combined with-the trigger and crank-lever and operatin g as a t1 gger and friction sprin g', substantially as and for the purpose' hereinbefore set forth.

9. The combination of the combined nose-cap and band and the ramrod, substantially as and for the purpose hereinbefore set forth.

Y BETHEL., BURllll-..\TA

WINGFIELD G. BURTON.

Witnesses:

B. S. iNIoULToN, EDWIN WILKINSON. 

